svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.impl / src / main / java / org / gvsig / fmap / dal / feature / impl / featurereference / EditingFeatureReference.java @ 45647
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/*
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* To change this license header, choose License Headers in Project Properties.
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* To change this template file, choose Tools | Templates
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* and open the template in the editor.
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*/
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package org.gvsig.fmap.dal.feature.impl.featurereference; |
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import java.lang.ref.WeakReference; |
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import java.util.Base64; |
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import java.util.UUID; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.feature.Feature; |
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import org.gvsig.fmap.dal.feature.FeatureStore; |
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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.fmap.dal.feature.impl.DefaultFeatureStore; |
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import org.gvsig.fmap.dal.feature.spi.FeatureProvider; |
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import org.gvsig.fmap.dal.feature.spi.FeatureReferenceProviderServices; |
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import org.gvsig.tools.persistence.Persistent; |
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import org.gvsig.tools.persistence.PersistentState; |
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import org.gvsig.tools.persistence.exception.PersistenceException; |
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import org.json.JSONArray; |
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/**
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*
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* @author fdiaz
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*/
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public class EditingFeatureReference implements FeatureReferenceProviderServices, Persistent { |
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private String uid; |
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private WeakReference storeRef; |
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private String featureTypeId; |
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/*friend*/
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EditingFeatureReference(FeatureStore store, FeatureProvider data) { |
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this.storeRef = new WeakReference(store); |
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this.featureTypeId = store.getDefaultFeatureTypeQuietly().getId();
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this.generateUUID();
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} |
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private String generateUUID() { |
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UUID x = UUID.randomUUID(); |
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String s = x.toString().replace("-", ""); |
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return s;
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} |
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@Override
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public Object getOID() { |
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return null; |
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} |
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@Override
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public String[] getKeyNames() { |
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return null; |
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} |
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@Override
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public Object getKeyValue(String name) { |
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return null; |
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} |
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@Override
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public String getFeatureTypeId() { |
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return featureTypeId;
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} |
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@Override
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public Feature getFeature() throws DataException { |
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return this.getStore().getFeatureByReference(this); |
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} |
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@Override
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public Feature getFeatureQuietly() {
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try {
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return this.getFeature(); |
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} catch (Exception e) { |
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return null; |
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} |
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} |
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@Override
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public Feature getFeature(FeatureType featureType) throws DataException { |
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return this.getStore().getFeatureByReference(this, featureType); |
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} |
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private DefaultFeatureStore getStore() {
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return (DefaultFeatureStore) this.storeRef.get(); |
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} |
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@Override
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public boolean isNewFeature() { |
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return true; |
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} |
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@Override
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public String getCode() { |
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Object[] data = new Object[7]; |
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data[0] = "uid"; |
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data[1] = this.uid; |
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String s = new JSONArray(data).toString(); |
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String r = Base64.getEncoder().encodeToString(s.getBytes());
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return r;
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} |
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@Override
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public void saveToState(PersistentState state) throws PersistenceException { |
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state.set("uid", uid);
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state.set("store", (Persistent) storeRef.get());
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state.set("featureTypeId", featureTypeId);
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} |
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@Override
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public void loadFromState(PersistentState state) throws PersistenceException { |
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this.uid = state.getString("uuid"); |
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this.storeRef = new WeakReference(state.get("store")); |
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this.featureTypeId = state.getString("featureTypeId"); |
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} |
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} |